Circular channeled forced induction fuel bowl system with fuel syphoning technology

Abstract

A fuel bowl system for a carburetor has a fuel bowl with a cavity configured to receive and store liquid fuel prior to delivery to the carburetor. The fuel bowl has a main structure extending from an outer surface of the fuel bowl. The main structure has an inlet for receiving liquid fuel from a fuel source and discharge passages in fluid communication with the inlet and the cavity. A cap is removably connected to the main structure. The main structure and the cap together define fuel delivery channels in fluid communication with the inlet and the discharge passages. The inlet directs liquid fuel received from the fuel source into the fuel delivery channels, the fuel delivery channels deliver the liquid fuel into the discharge passages, and the discharge passages discharge the liquid fuel into the cavity of the fuel bowl.

Claims

1. A fuel bowl system for a carburetor, the fuel bowl system comprising: a fuel bowl having a cavity configured to receive and store liquid fuel prior to delivery to the carburetor, the fuel bowl including a main structure extending from an outer surface of the fuel bowl, the main structure having an inlet for receiving liquid fuel from a fuel source and discharge passages in fluid communication with the inlet and the cavity; and a cap removably connected to the main structure, the main structure and the cap together defining fuel delivery channels in fluid communication with the inlet and the discharge passages, wherein the inlet directs liquid fuel received from the fuel source into the fuel delivery channels, the fuel delivery channels deliver the liquid fuel into the discharge passages, and the discharge passages discharge the liquid fuel into the cavity of the fuel bowl.

2. The fuel bowl system of claim 1, wherein the discharge passages are configured to deliver and discharge the fuel into the fuel bowl cavity at a mid-level location within the fuel bowl, thereby reducing aeration of the fuel by creating a syphoning effect upon entry at the mid-level location.

3. The fuel bowl system of claim 1, wherein the discharge passages comprise two discharge passages for discharging the fuel into the fuel bowl cavity at a 45-50 degree angle, and two discharge passages for discharging the fuel horizontally towards the fuel bowl cavity.

4. The fuel bowl system of claim 1, wherein the discharge passages and the fuel delivery channels are configured to create a pressure differential that induces a syphoning effect to reduce aeration and promote fuel stabilization within the fuel bowl cavity.

5. The fuel bowl system of claim 1, wherein the fuel bowl cavity has an internal volume configured to provide additional fuel reserve for high-horsepower or forced-induction applications.

6. The fuel bowl system of claim 1, further comprising a diaphragm housing integrated into a lower portion of the fuel bowl cavity, the diaphragm housing being configured to direct unaerated fuel to the carburetor.

7. The fuel bowl system of claim 1, wherein the fuel bowl system includes holes configured to receive bolts that protrude through the fuel bowl cavity for fastening the fuel bowl system to a main body of the carburetor.

8. The fuel bowl system of claim 1, wherein the main structure and the cap are provided on an outer side surface of the fuel bowl.

9. The fuel bowl system of claim 1, wherein the fuel delivery channels comprise circular channels formed by two open channels on the main structure cooperating with two corresponding open channels on the cap.

10. The fuel bowl system of claim 1, wherein the inlet of the main structure is configured to direct the liquid fuel received from the fuel source to a needle valve that cooperates with a float to maintain a fuel level within the fuel bowl cavity.

11. A fuel bowl system for a carburetor, the fuel bowl system comprising: a fuel bowl having a cavity configured to receive and store liquid fuel prior to delivery to the carburetor; two main structures, each extending from a respective opposite outer surface of the fuel bowl, each main structure having an inlet for receiving liquid fuel from a fuel source and discharge passages in fluid communication with the inlet and the cavity; and two caps, each removably connected to a corresponding one of the two main structures, wherein each main structure and its corresponding cap together define fuel delivery channels in fluid communication with the inlet and the discharge passages of that main structure; wherein for each main structure and corresponding cap, the inlet directs liquid fuel received from the fuel source into the fuel delivery channels, the fuel delivery channels deliver the liquid fuel into the discharge passages, and the discharge passages discharge the liquid fuel into the cavity of the fuel bowl.

12. The fuel bowl system of claim 11, wherein for each main structure and corresponding cap, the discharge passages are configured to deliver and discharge the fuel into the fuel bowl cavity at a mid-level location within the fuel bowl, thereby reducing aeration of the fuel by creating a syphoning effect upon entry at the mid-level location.

13. The fuel bowl system of claim 11, wherein for each main structure and corresponding cap, the discharge passages comprise two discharge passages for discharging the fuel into the cavity at a 45-50 degree angle, and two discharge passages for discharging the fuel horizontally towards the fuel bowl cavity.

14. The fuel bowl system of claim 11, wherein for each main structure and corresponding cap, the discharge passages and the fuel delivery channels are configured to create a pressure differential that induces a syphoning effect to reduce aeration and promote fuel stabilization within the fuel bowl cavity.

15. The fuel bowl system of claim 11, wherein the fuel bowl cavity has an increased internal volume relative to standard carburetor fuel bowls to provide additional fuel reserve for high-horsepower or forced-induction applications.

16. The fuel bowl system of claim 11, further comprising a diaphragm housing integrated into a lower portion of the fuel bowl cavity, the diaphragm housing being configured to direct unaerated fuel to the carburetor.

17. The fuel bowl system of claim 11, wherein the fuel bowl system includes a plurality of holes configured to receive bolts that protrude through the fuel bowl cavity for fastening the fuel bowl system to a main body of the carburetor.

18. The fuel bowl system of claim 11, wherein the two main structures and corresponding caps extending from respective opposite side outer surfaces of the fuel bowl.

19. The fuel bowl system of claim 11, wherein for each main structure and corresponding cap, the fuel delivery channels comprise circular channels formed by two open channels on the main structure cooperating with two corresponding open channels on the cap.

20. The fuel bowl system of claim 11, wherein for each main structure and corresponding cap, the inlet of the main structure is configured to direct the liquid fuel received from the fuel source to a needle valve that cooperates with a float to maintain a fuel level within the fuel bowl cavity.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) The following drawings refer to the embodiments of the present invention. It should be understood that the description of the drawings are provided purely for the purpose of illustration and exemplification only and are in no way to be taken as limitative of the scope of the present invention:

(2) FIG. 1 is a view of the inside cap fuel channeling system cover which attaches to FIG. 3 to form the circular channel reservoir.

(3) FIG. 2 is an outside view of FIG. 1 and is an embodiment of the end cap that attaches to the outside of the fuel bowl system which seals the unit to FIG. 3.

(4) FIG. 3 is a side view of the fuel bowl system before the caps in FIGS. 1 and 2 are attached, showing a view of the fuel channels which create fuel syphoning.

(5) FIG. 4 is an inside view of the fuel bowl showing the large internal fuel cavity and shows ans embodiment that exemplifies a dual needle valve configuration.

(6) FIG. 5 is the outside view of FIG. 4 without the caps in FIG. 1 and FIG. 2 attached to its ends.

DETAILED DESCRIPTION OF THE INVENTION

(7) The quad or dual circular channel (3) forced induction fuel bowl with fuel syphoning technology utilizes channels (3) to deliver fuel to the fuel bowl system to allow a carburetor to have the proper fuel capacity in a forced induction or naturally aspirated scenario. The fuel bowl system can be in two forms; one being a single needle valve or, two, being a dual needle valve configuration. For a single configuration the needle valve and fuel channeling system is provided on a main structure (12) located on the back side of the fuel bowl (6) having a cavity (8) and uses one float to control the fuel level; only one inlet (1) as its fuel source is used in this configuration. In a dual configuration there will be one needle valve and fuel channeling system (3) provided on main structures (12) located on opposing sides or ends of the fuel bowl (6) having the cavity (8), with independent floats for fuel level control that increases fuel flow capacity. The mid feed discharge (4) allows unaerated fuel to be delivered to the circular channeling (3). When in a forced induction state, the fuel bowl systems responsibility is to maintain the proper fuel level while allowing a 1:1 pressure ratio increase. The fuel and manifold atmospheric pressure increases while the engine is consuming the fuel and maintaining the proper level upon atmospheric pressure changes in the internal combustion engine. This pressure can range from 0-150 psi. The fuel bowl system consists of the fuel bowl (6) with a large capacity fuel cavity (8) and main structure (12) with circular fuel delivery channels (3) that are completed by the outer caps (2) (FIGS. 1 & 2) that are attached by seven screws (5) and sealed by two O-rings per side. Each outer cap 2 includes a straight inlet (1) to reduce fuel drag and is where the fuel line is attached. One or two needle valves direct fuel in the circular channels (3) and allow the channels to distribute the liquid fuel into the fuel bowl cavity (8). When fuel is forced through these circular channels (3) it creates a pressure differential directing fuel into the four or eight fuel distribution outlets where they merge together creating a syphoning effect as the liquid fuel enters the cavity (8). When the fuel is distributed in this manner, as per the needs of the internal combustion engine and manifold atmospheric pressure demands the fuel level is properly maintained by the float which is attached using the float housing (7) allowing the maximum amount of fuel in the fuel bowl cavity (8) to be on reserve for the internal combustion engine demands. This effect allows the fuel channels (3) to fill with fuel, priming the system for immediate fuel consumption upon atmospheric pressure referencing to the engine and the fuel pressure regulator. The syphoning effect upon entry to the fuel cavity (8) reduces aeration and stabilizes the fuel with its nonrestrictive channels (3) and wide sweeping radiuses to a merge point into the fuel bowl cavity (8) which is important through the major increase of pressures and pressure change. This method is important because when one channel of fuel is larger than another and at a merge point in the fuel bowl cavity (8) it will create a syphon effect pulling more fuel from the overall channeling (3) thus an increase of pounds per hour of fuel flow and not allowing aeration into the fuel cavity (8). If fuel is mixed with air bubbles it will change the calibration of the carburetor upon fuel delivery to the engine because there will be un metered air going into the main well of the metering block or plate. This present design prohibits that from ever happening. The construction of the fuel bowl system (FIGS. 4&5) utilizes four holes (10) to allow the fuel bowl bolts to protrude through the fuel bowl cavity (8) and the metering block or plate to allow the fuel bowl system to fasten to the carburetor main body. As part of the fuel bowl system the float attachment hinge (7) is integrated within the fuel bowl system and requires only a 1.5 inch pin to attach the float to the fuel bowl system. The float hinge pin is installed by using the inch hole (11) to insert the pin into the float keeping the float suspended for proper level operation and utilizes a 1/16 NPT plug to ensure it doesn't leak any fuel while under pressure during normal operation. The fuel bowl system also has a diaphragm housing (9) integrated in the bottom of the fuel bowl (6). It is designed to store unaerated fuel for proper carburetor function while opening the throttle blades. This cavity will direct unmetered and unaerated fuel into the main body of the carburetor allowing the internal combustion engine to accelerate upon throttle positioning without going lean (or lack of fuel causing a stumble and poor operation).